“Yuu and yoh dwatah ah dwoomed!” 
I couldn’t tell if the actress (Angelika Jager) just had a foreign accent, or if she was deaf. Maybe it was both—I’ve never heard a deaf person, including Helen Keller, with an accent that thick. Or who had that awful an acting presence.
Yay! I get to be the first to mention Liquid Sky, a low-budget semi-art film about an alien preying on big-haired Eighties NYC clubhoppers. Saw it in college and hated, hated, hated it.
Star Trek V. A false and entirely unconvincing “god.” Kirk in full preen. Spock’s never-mentioned, long-lost, touchy-feely half-brother. Scotty reduced to the worst possible comic relief. Uhura dancing far past her prime. Bad sfx. :: Shudder ::
The Matrix 3. Ugh. I liked the first movie a lot, despite its goofy, nonsensical premise, but the sequels just got worse and worse.
Mission to Mars. Could have been much, much better. A sf movie made by people who knew nothing about science, and couldn’t create good fiction. A fine cast and top-quality sfx, squandered.
Waterworld. Loooooong and stoopid, although the first minute or two is worth a look, as you see the oceans rise.
Here goes…
Adding to the many mentions of Starcrash (the Italian Star Wars knock-off), I submit for your disapproval: Message From Space, the Japanese Star Wars knock-off (released the same year). Vic Morrow looks like he wandered into the wrong movie set and couldn’t get out. After this film, his beheading while filming Twilight Zone…superfluous.
The remake of Rollerball. The original is brilliant commentary on our culture and values. The remake is a piece of tripe trying to capitalize on the fad of Extreme Sports (which is part of the point of the original. I’m not sure if the guys who did the remake ever saw the original.) I rented this steaming pile and turned it off a third of the way through.
Solarbabies. Jamie Gertz in her 80s big-hair heyday. Nuff Said.
Battle Beyond The Stars. John-Boy Walton in yet another Magnificent Seven pastiche…though, to be fair, Star Wars fits that category, too.
Spacehunter 3D: Adventures in the Forbidden Zone. Even Molly Ringwold fans should stay away from this turd. Saw it in 3D in the theatres – gave me a headache on several levels.
I just looked up Star Crash, given all of its votes here. Sweet Og - Christopher Plummer and David Hasselhoff in an Italian Star Wars knockoff? :eek:
But Highlander doesn’t belong on a list of the worst five. It had some cool stuff and ideas that were fresh at the time. I always thought it was pretty incredible that it could be turned into a franchise–it wasn’t anywhere near THAT good.
As far as Queen’s music, the parts that appeared on A Kind of Magic were not as good as the band’s best work but were waay better than anything that came after, and also better than the band’s previous two albums (three if you count the Flash Gordon soundtrack, which I mercifully don’t.)
I think one of the worst movies I’ve ever seen has to “Future War.”
It’s on youtube from MST3K in like 9 parts, if you have time I definitely recommend watching it, it’s hilarious since it’s just so terribly bad.
Since no one else has mentioned the third Alien movie – the one where Sigourney is bald – I will.
Other than that and Highlander 2, my five worst would be movies whose names and plots I have forgotten. The Star Wars prequels would be among the biggest disappointments, not quite the same thing.
Dishonorable mention to Starman too - that’s where Jeff Bridges plays an alien who finds Earth after encountering Voyager 1 in space. In 1984. When Voyager was still in the solar system. So alien Jeff latches onto a 1,500-lb. spacecraft before noticing the nearby planet emitting a half century of radio and TV waves. Lost me in the first scene and never got me back.
Mad Max 3: Beyond Thunderdome
Flash Gordon
Battlefield Earth
Phantom Menace (except for the pod-racing scene, which I thought was awesome)
Highlander 2
I don’t get the hate for Stargate. It had James Spader, for christ’s sake! And pyramids!
Does no one remember the dreadful, cheap, boring space movies from the Cold War era that the TV stations used to play on Saturday afternoons? Things like ‘Flight To Mars’, ‘Rocketship X-M’, ‘Lost Missile’?..Usually starring a no-name cast (occasionally a well known actor like Lloyd Bridges showed up). Black and white, bottom of the barrel, homely middle-aged space explorers pushing buttons and steering rocketships, lots of flashing lights, and boringboringboring dialogue. Oh, and they all smoked while doing so. Any women featured were usually the daughters of Professor So-and-So, or scientists in their own right with glasses and lab coats, ogled and harrassed by the men. There weren’t even any good space monsters!
Everything mentioned above at least is in color, has some camp value and special effects - Starship Troopers is as Citizen Kane compared to the early space race time-fillers!
What is wrong with you?
I agree with just about everything already mentioned so I’ll try to add a few new ones no one thought of.
The Arrival
Time Bandits (I liked it when I was younger, but now I know I was mistaken)
Jack Frost 2: Revenge of the Mutant Killer Snowman (was ALMOST so bad it was good)
The Incredible Hulk (when Norton was attacked by the mutant poodles I almost pissed my pants)
Zardoz
Indiana Jones and the Kingdom of the Crystal Skull (aliens=sci fi and with extensive therapy I an now able to admit this movie was indeed created.)
The Mothman Prophecies
For some reason I kinda liked Prayer of the Rollerboys, but I’m sure it was the novelty of rollerblades or because I thought trench coats were cool at the time. It certainly wasn’t the the poor acting, plot and dialogue.
What’s wrong with you?
I had the same reaction to Robinson Crusoe on Mars, which I recently saw again. It really was awful, even making allowances for its limited budget. I was a little embarrassed to be showing it to my nine-year-old.
Proof that taste does not always improve with age. 
Wrong Hulk. That was Eric Bana with the poodles.
I never actually said it did.
If you are referring to the original The Day the Earth Stood Still your services will no longer be required, you may go.
Not being a masochist, I tend not to watch very much bad SF. But Alien: Resurrection is definitely one of the worst I’ve ever sat through. I just kept hoping for something to make it good. I started out hoping for Winona boobs. By the end I’d have settled for Brad Dourif boobs.
Alas, I had to settle for half-Ripley/half-xenomorph boobs.
shudder
Most of the ones already mentioned, plus these:
Robot Jox
Judge Dredd
Timecop
Virus
Stealth
The last 2/3 of the movie consisted of POV shots as though you’re in a First Person Shooter wearing night vision goggles. Seriously. I can’t believe I forgot to mention that tub of shit.
Zardoz was in fact already mentioned in this thread. I know b/c I was going to mention it specifically.
I have to defend Rocketship X-M. Sure it was made on a budget; sure a lot of the science isn’t correct; and OH MY GOD it’s in B&W.
But it does have some good ideas (atomic-ravaged Martian civilization), a proto-feminist lady scientist (more competent than the chief scientist), and a perfectly marvelous ending. Compare that to Starship Troopers, which doesn’t have a single idea in its vacuous little head.
It had Ron Perlman in it. That’s always good.